2. History: the discipline that records and interprets past events.
3. Imperialism: when one nation or people seeks to control the economic, political, and/or cultural lives of another nation or people. (The process of becoming an "empire"
4. Self-Determination: the right of a people to rule/govern themselves
5. Ultimatum: a final set of demands
6. Mobilize: to prepare a nation's military for war.
7. Heir: somebody who holds the right to receive a property, positiion, or title ob somebody else when that person dies. (e.g. Archduke Franz Ferdinand was heir to the Austro-Hungarian thronw.)
8. Stalemate: a deadlock in which neither side is able to defeat the other.
9.caliber weapons (such as cannon or missile launchers) that are operated by crews.
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